use R.cache

Author: lorenzwalthert

DESCRIPTION

@@ -27,14 +27,14 @@ Imports:
     tibble (>= 1.4.2),
     tools,
     withr (>= 1.0.0),
-    xfun (>= 0.1)
+    xfun (>= 0.1),
+    R.cache (>= 0.13.0.9000)
 Suggests: 
     data.tree (>= 0.1.6),
     dplyr,
     here,
     knitr,
     prettycode,
-    R.cache,
     rmarkdown,
     rstudioapi (>= 0.7),
     testthat (>= 2.1.0)
@@ -92,3 +92,5 @@ Collate:
     'vertical.R'
     'visit.R'
     'zzz.R'
+Remotes:  
+    lorenzwalthert/R.cache@shallow